Is there a pin-compatible replacement for RST100UF50V012?

Yes, several parts like FZ100UF50V90RV0066 and VT1H101MF105000CE0 share the same 8mm x 10.5mm SMD package and are likely pin-compatible. However, always verify the datasheet and secondary parameters like load life before substitution.

What risks should I check before replacing RST100UF50V012?

Key parameters to verify are load life, ripple current rating, and operating temperature range. Some alternatives may have a shorter life (e.g., 1000h vs 2000h) or lower ripple current, which could impact circuit reliability.

RST100UF50V012 Alternatives, Datasheet & Cross Reference | KNSCHA

Find the best replacement for the KNSCHA RST100UF50V012, a 100uF 50V aluminum electrolytic capacitor. This guide provides verified upgrade paths and pin-compatible alternatives, with detailed analysis of electrical and physical parameters.

AI replacement insight

Package risklow

Multiple candidates share the same 8x10.5mm SMD package, ensuring physical compatibility.

Electrical riskmedium

Some alternatives have lower load life or ripple current. These must be carefully evaluated for the specific application to avoid premature failure.

Can it be replaced directly?

Yes, there are several direct replacements. FZ100UF50V90RV0066 is a recommended upgrade, while other parts are available but may have different performance characteristics like shorter load life.

Best replacement path

The KNSCHA FZ100UF50V90RV0066 is the best replacement, offering an upgrade in both load life (3000h vs 2000h) and ripple current (300mA vs 170mA) in the identical package.

Main risk

The main risk when substituting is selecting a part with a lower load life or ripple current rating, which can compromise the reliability and performance of the application.

Recommended alternatives

An upgrade with longer 3000h life and higher ripple current in the same package.

View details

Alternative comparison matrix

Feature / factor	RST100UF50V012	FZ100UF50V90RV0066	189RV0029	VT1H101MF105000CE0	Compatibility / risk
Package	SMD, 8mm x 10.5mm	SMD, 8mm x 10.5mm	SMD, 8mm x 10.5mm	SMD, 8mm x 10.5mm	SMD, 8mm x 10.5mm — Identical package dimensions.; 189RV0029: Identical package dimensions.; VT1H101MF105000CE0: Identical package dimensions.
Electrical	100 µF, 50V, ±20%	100 µF, 50V, ±20%	-	100 µF, 50V, ±20%	100 µF, 50V, ±20% — Capacitance, voltage, and tolerance match.; VT1H101MF105000CE0: Capacitance, voltage, and tolerance match.
Load Life	2000 hours	3000 hours	3000 hours	1000 hours	3000 hours / 1000 hours — Longer life offers improved reliability.; 189RV0029: Longer life offers improved reliability.; VT1H101MF105000CE0: Shorter life may impact long-term reliability.
Ripple Current	170 mA	300mA @ 100kHz	-	296 mA	300mA @ 100kHz / 296 mA — Higher ripple current handling capability.; VT1H101MF105000CE0: Higher ripple current rating is an improvement.
Temperature	-40°C to +105°C	-55°C to +105°C	-	-	-55°C to +105°C — Wider operating temperature range.
Voltage	50V	-	63V	-	63V — Higher voltage rating provides more margin.
Pin Count	2	-	null	-	null — Pin count is missing from data, but is likely 2 for this package.

Application & sourcing insights

Questions & answers

FZ100UF50V90RV0066 by KNSCHA is an excellent upgrade, offering longer life (3000h) and higher ripple current (300mA) in the same 8x10.5mm SMD package as the RST100UF50V012.